Block Diagram - Audio/Key Control/Power Supply Section - Sony D-EJ775 Service Manual

D-EJ775
5-2. BLOCK DIAGRAM – AUDIO/KEY CONTROL/POWER SUPPLY Section –
LDACO
RDACO
A
(Page 11)
SYSTEM CONTROLLER
IC801(2/2) (SUFFIX-11) IC801(2/2) (SUFFIX-12) IC801(2/2) (SUFFIX-13)
AMUTE 74
S808 − 811
HPSW 12
23 AD KEY 2 BEEP 30
31
TSB
S805 − 807
WP/AD RMKEY 26
25 WP/AD KEY 1
SDTO
E
(Page 11)
SYNC
C
(Page 11)
SCK
D
(Page 11)
VCPU 2V XWAKEUP 66
B+
S802
HOLD
8
XRESET
OFF
40 HOLD
HOLD
28 WP/XOPEN
VCPU 2V
B+ S801
OPEN
TAP806
(OPEN)
VCPU 2V
B+
S803
G-PROTECTION
ON
38 CMPON
OFF
D803
75 LEDDISP
CHARGE
TAP801
(TEST)
XPOWLT
21 AD SEL 14
AD BATMNT 24
AD CHGMNT 22
WP/AD DCINMNT 27
BATMNT
(Page 11) B
HEADPHONE AMP
IC302 (SUFFIX-11) IC302 (SUFFIX-12) IC302 (SUFFIX-13)
LIN
14
RIN
15
MUTE
19 MUTE SW
PWRSW
20 PW SW
BEEP
17 BEEP
POWER CONTROL
IC401(2/2) (SUFFIX-11) IC401(2/2) (SUFFIX-12) IC401(2/2) (SUFFIX-13)
27 DATA
24 SYNC
26 CLOCK
D801
VG
SPINDLE MOTOR
3 VG
DRIVER (IC406)
B+
VCPU 2V
16 VCPU
SYSTEM CONTROLLER
(IC801) B+
VCC1 2.2V
APC CIRCUIT,
DSP (IC601),
14 VCC1-OUT
D-RAM (IC603)
B+
AVDD 2V
+2.1 REGULATOR
OPTICAL PICK-UP BLOCK,
IC402
DSP (IC601) B+
IC402 (SUFFIX-11)
IC402 (SUFFIX-12)
DVDD 2V
DSP (IC601) B+
IC402 (SUFFIX-13)
28 LATCH
53 VMMNT
54 CHGMNT
J301
i
LOUT
8
ROUT
6
VCPU 2V
B+
L802
VCPU 2V
4
3 TSB
2 RMKEY
1 GND
WAKE UP SWITCH
WAKEUP 25
Q402
RESET 23
L401
LG 4
VIN 6
VCC0 10
VCC1-IN 15
STNG 13
BATM1 56
DET 63
CHGB 1
B+ SWITCH
CHARGE
REGB 62 CONTROL
Q405
REGULATOR
DC IN 2
IC404 (SUFFIX-11)
IC404 (SUFFIX-12)
IC404 (SUFFIX-13)
12 12
• SIGNAL PATH
: CD PLAY
COIL/MOTOR DRIVER,
(IC401, 406)
HEADPHONE AMP
(IC302) B+
RESET SIGNAL
GENERATOR
IC405
IC405 (SUFFIX-11)
IC405 (SUFFIX-12)
IC405 (SUFFIX-13)
B+ SWITCH
Q401
RECHARGEABLE BATTERY
CHARGE
DRY BATTERY
CHARGE ON
(IEC DESIGNATION LR6)
SWITCH
Q404
D404
Q403
B+ SWITCH
IC404
Q407
L406
J401
DC IN 4.5V
–
L407
NC-WMAA
2PCS. 2.4V
OR
SIZE "AA"
2PCS. 3V
+